Probabilistic stress wave analysis system and method
US7505852B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2007 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A statistical process, and system for implementing the process, is described for the analysis of stress waves generated in operating machinery or equipment. This technique is called Probabilistic Stress Wave Analysis. The process is applied to a population of individual “feature” values extracted from a digitized time waveform (such as a 2 second Stress Wave Pulse Train, or a 2 month history of Stress Wave Energy). Certain numeric descriptors of the statistical distributions of computed features are then employed as inputs to decision making routines (such as neural networks or simple threshold testing) to accurately classify the condition represented by the original time waveform data, and thereby determine a status of the operating machine/equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.